Headset assembly for bluetooth utilities

ABSTRACT

Disclosed is a headset assembly for Bluetooth equipment. The headset assembly (H) for Bluetooth communication with mobile communication equipment includes an earphone body part ( 20 ) and a main body part ( 30 ) provided individually and connected to each other such that the earphone body part ( 20 ) and the main body part ( 30 ) can be hingedly rotated relative to each other about a hinge shaft ( 10 ), a carrying cap ( 50 ) selectively coupled to the earphone body part ( 20 ) or the main body part ( 30 ), the carrying cap ( 50 ) constituting a housing body together with the earphone body part ( 20 ) and the main body part ( 30 ), and a means mounted to the housing body for generating a switching signal to electrically open and close the headset assembly. The means for generating the switching signal of the headset assembly (H) is selected among a hole switch which can be operated by the connection and disconnection between a sensitive magnet (Mg) and a magnetic force sensitive IC (C) selectively provided at the earphone body part ( 20 ) and the main body part ( 30 ) or the carrying cap ( 50 ) through the hingedly rotation of the earphone body part ( 20 ) and the main body part ( 30 ) relative to each other about the hinge shaft ( 10 ), such that the earphone body part ( 20 ) and the main body part ( 30 ) form an angle therebetween or the earphone body part ( 20 ) and the main body part ( 30 ) are arranged in a straight line, or through the attachment or detachment of the carrying cap ( 50 ), a mechanical switch, such as a micro switch, which can be pressed according to the hingedly rotation of the earphone body part ( 20 ) or the main body part ( 30 ) about the hinge shaft ( 10 ) or the attachment and detachment of the carrying cap ( 50 ), and a switch which can be turned on and off by the rotation of the hinge shaft ( 10 ).

TECHNICAL FIELD

The present invention relates to a headset assembly for Bluetoothequipment, and, more particularly, to a headset assembly for Bluetoothequipment which is constructed to be suitably applied to communicationequipment using Bluetooth, which is a wireless transmission systemadopted in various kinds of mobile communication equipment, especiallymobile communication equipment, such as mobile phones, and, in addition,which has a power saving function.

BACKGROUND ART

In recent years, there have been widely used terminal means, such asearphones, adopting a ‘Bluetooth’ communication protocol, a low-powerlocal distance wireless transmission protocol system, i.e., a‘Bluetooth’ communication protocol, which is one of new wirelesstransmission systems.

In particular, headsets adopting a Bluetooth communication protocolapplied to mobile communication equipment transmit a transmission soundand a reception sound at low power. Consequently, the headsets allowcommunication without the use of additional wires or cables. Also, thepower consumption of the headsets is very small, and therefore, theusefulness of the headsets is very high to such an extent that themaintenance expenses of the headsets are negligible. Consequently, theheadsets have been popularized. For this reason, various kinds ofheadsets adopting the Bluetooth communication protocol have beendeveloped by famous manufacturing companies and placed on the market.

DISCLOSURE OF INVENTION Technical Problem

An important standpoint of terminals, such as earphones or headsets,adopting the above-mentioned Bluetooth is that standby time of theterminals necessary to continue communication must be long and thecarrying of the terminals must be convenient because the terminals aregenerally used as an auxiliary device for mobile communicationequipment.

A conventional Bluetooth headset OH with a general structure isillustrated in FIG. 1.

The headset is a receiving terminal that reproduces a signal transmittedfrom a mobile phone H. The headset includes a receiving body 1 forreceiving an internal circuit, a speaker 2 mounted to the receiving body1, a microphone 3 connected to the receiving body 1 via a hinge arm 4rotatably mounted to the receiving body 1 by a hinge 7, and a generaltelephone conversation switch 5 and a charge-purpose power connector 6,which are interfaces exposed from the receiving body 1.

However, the conventional headset has problems in that it is veryinconvenient for a user to carry the headset and to put the headset inhis/her pocket.

Also, the conventional headset has problems in that the telephoneconversation switch is pressed by an external force, during the keepingof the headset in the pocket of the user, i.e., when the headset is notin use, whereby the headset is unintentionally operated, and therefore,the headset attempts to connect with the mobile phone, or resendingdialing is performed, whereby unnecessary telephone conversation iscarried out without the recognition of the user, and therefore, anexcessive amount of telephone conversation charge is imposed on the userand the standby time is reduced due to the unnecessary powerconsumption.

Especially, after the conventional Bluetooth headset is set to be ONthrough the user's manipulation of a multifunction key, the headset isalways in a standby mode, and therefore, the power of the headset iscontinuously consumed in the standby mode of the headset, with theresult that the use time of the headset is extremely restricted.

A more serious problem of the conventional headset is that, when theBluetooth function is turned ON by the user, an indication lamp, such asa light emitting diode (LED), is flashed to indicate only the use of theBluetooth function, and therefore, the headset is frequently set to bein the standby mode even when the Bluetooth function is not used by theuser.

This is caused by the design to mount both the manipulation switch andthe indication lamp in the very small Bluetooth headset. Specifically,it is difficult to visually recognize the use (ON) state, the standbystate, and the nonuse (OFF) state with ease through the use of thesingle function key and the indication lamp.

Therefore, if the user does not pay attention, the user cannot recognizewhether the Bluetooth headset is currently in the standby state or theOFF state, with the result that the standby time of the headset isgreatly reduced.

Also, the headset adopting the Bluetooth is generally provided with thepower connector 6, through which the headset is charged through apersonal computer, a mobile phone, or an additional power supply, suchthat the headset is constructed to be a small-sized device that can becarried by the user. When the headset is put in the pocket of the user,however, foreign matter, such as dust, may be introduced into the powerconnector 6, which is an exposed terminal part of the headset, with theresult that poor contact is caused.

Technical Solution

Therefore, there is required for a Bluetooth headset that can beconveniently carried and that can prevent the unintentional operation ofthe telephone conversation switch in the standby state and introductionof foreign matter into the power connector. It is an object of thepresent invention to provide a headset assembly for Bluetooth equipmentthat is capable of accomplishing the above objects while exhibitingportability and usability.

It is another object of the present invention to provide a headsetassembly for Bluetooth equipment constructed in a structure in which theheadset assembly can be bent such that a user can easily recognize astandby state of the headset assembly although the user does not know aplurality of difficult setting indications, such as blinking, continuousblinking, and change of blinking colors, of a conventional indicationlamp, such as LED.

It is a further object of the present invention to provide a headsetassembly for Bluetooth equipment constructed in a structure in which,when the standby state of the headset assembly is set by the bendingoperation of the headset assembly, the occurrence of an event operationis decided by a microcomputer, and the power saving operation isselectively or simultaneously performed through the switch to a powersaving mode of a Bluetooth integrated circuit, thereby greatlyincreasing the use time of the headset assembly to more than 10 times,and therefore, greatly improving the usefulness of the Bluetooth.

ADVANTAGEOUS EFFECTS

The headset assembly for Bluetooth equipment according to the presentinvention is constructed to satisfy the portability required when itsuse with mobile communication equipment and not to respond to amanipulation signal generated by the unintentional operation of amanipulation switch when the headset assembly is not in use.Consequently, the headset assembly for Bluetooth equipment according tothe present invention has the effect of increasing the standby time,which is the most important technical standpoint, preventing theunintentional cross during the telephone conversation, preventing theincrease of telephone conversation charge, and preventing theintroduction of foreign matter into the power connector of the headsetassembly.

Also, the headset assembly for Bluetooth equipment according to thepresent invention has the effect of exhibiting the portability and, inaddition, the usefulness as an accessory.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and other advantages of thepresent invention will be more clearly understood from the followingdetailed description taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 is a view illustrating the exemplary shape and use of aconventional Bluetooth headset with a general structure;

FIG. 2 is a perspective view illustrating the exemplary structure of aheadset assembly for Bluetooth equipment according to the presentinvention, a carrying cap being removed from the headset assembly;

FIG. 3 is a perspective view illustrating a standby or operation mode ofthe headset assembly for Bluetooth equipment according to the presentinvention;

FIGS. 4A to 4C are a left side view, a front view, and a right side viewrespectively illustrating the headset assembly for Bluetooth equipmentof FIGS. 2 and 3, and FIG. 4D is a right side view of the headsetassembly for Bluetooth equipment when in use;

FIG. 5 is a perspective view illustrating the structure of anotherexemplary design to which the headset assembly for Bluetooth equipmentaccording to the present invention is applied;

FIG. 6 is a perspective view illustrating a standby mode in which anearphone of FIG. 5 is on;

FIG. 7 is a view illustrating another exemplary power-saving structureof the headset assembly for Bluetooth equipment according to the presentinvention; and

FIG. 8 is a view illustrating an idle mode and an activation mode of aconventional headset for Bluetooth equipment.

BEST MODE FOR CARRYING OUT THE INVENTION

In accordance with the present invention, the above and other objectscan be accomplished by the provision of a headset assembly H forBluetooth communication with mobile communication equipment, includingan earphone body part 20 and a main body part 30 provided individuallyand connected to each other such that the earphone body part 20 and themain body part 30 can be hingedly rotated relative to each other about ahinge shaft 10, a carrying cap 50 selectively coupled to the earphonebody part 20 or the main body part 30, the carrying cap 50 constitutinga housing body together with the earphone body part 20 and the main bodypart 30, and a means mounted to the housing body for generating aswitching signal to electrically open and close the headset assembly.

Preferably, the means for generating the switching signal of the headsetassembly H is selected among a hole switch which can be operated by theconnection and disconnection between a sensitive magnet Mg and amagnetic force sensitive integrated circuit (IC) C selectively providedat the earphone body part 20 and the main body part 30 or the carryingcap 50 through the hingedly rotation of the earphone body part 20 andthe main body part 30 relative to each other about the hinge shaft 10,such that the earphone body part 20 and the main body part 30 form anangle therebetween or the earphone body part 20 and the main body part30 are arranged in a straight line, or through the attachment ordetachment of the carrying cap 50, a mechanical switch, such as a microswitch, which can be pressed according to the hingedly rotation of theearphone body part 20 or the main body part 30 about the hinge shaft 10or the attachment and detachment of the carrying cap 50, and a switchwhich can be turned on and off by the rotation of the hinge shaft 10.

MODE FOR THE INVENTION

Now, a headset assembly for Bluetooth equipment according to the presentinvention will be described in detail with reference to the accompanyingdrawings.

FIG. 2 is a perspective view illustrating the exemplary structure of aheadset assembly for Bluetooth equipment according to the presentinvention, a carrying cap being removed from the headset assembly, FIG.3 is a perspective view illustrating a standby or operation mode of theheadset assembly for Bluetooth equipment according to the presentinvention, FIGS. 4A to 4C are a left side view, a front view, and aright side view respectively illustrating the headset assembly forBluetooth equipment of FIGS. 2 and 3, and FIG. 4D is a right side viewof the headset assembly for Bluetooth equipment when in use, FIG. 5 is aperspective view illustrating the structure of another exemplary designto which the headset assembly for Bluetooth equipment according to thepresent invention is applied, FIG. 6 is a perspective view illustratinga standby mode in which an earphone of FIG. 5 is on, FIG. 7 is a viewillustrating another exemplary power-saving structure of the headsetassembly for Bluetooth equipment according to the present invention, andFIG. 8 is a view illustrating an idle mode and an activation mode of aconventional headset for Bluetooth equipment.

The headset assembly H for Bluetooth equipment according to the presentinvention is basically characterized by the construction of a bendablerotary body and in that a manipulation switch for telephone conversationcan be operated in a standby state in which the rotary body is bent.

As shown in FIG. 2, the headset assembly H includes an earphone bodypart 20 and a main body part 30 which are rotatable relative to eachother about a hinge shaft 10.

The main body part 30 has a Bluetooth circuit board 40 mounted therein.Also, the main body part 30 has a microphone M, an indication lamp 33, amanipulation button 31, which is a multifunction switch to perform thebeginning of telephone communication and termination of telephonecommunication, and a volume switch 32 (hereinafter, the manipulationbutton 31 and the volume switch 32 will be referred to as ‘manipulationswitches’). In addition, the main body part 30 is provided at the upperend thereof with a hinge shaft part 35, which is an extension memberprotruding upward. At the end of the hinge shaft part 35 is mounted apower connector 60, which is exposed to the outside.

Through the cooperation of the above-described structure and anotherstructure of the headset assembly, which will be described below, thepower connector 60 of the main body part 30 is exposed to the outsideonly when the earphone body part 20 is hingedly rotated relative to themain body part 30, whereby the introduction of external foreign matterinto the power connector is effectively prevented.

The advantage obtained by the separation of the earphone body part 20from the main body part 30 is that the inactivation and activation ofthe manipulation switches, which will be described below, is easilyperformed.

In addition, an echo phenomenon (sound outputted from an earphone istransmitted to a microphone through an acoustic room defined in ahousing of the headset, whereby the sound is transmitted to the otherparty as a reflected sound), which occurs in the conventional bar-typeBluetooth headset, is fundamentally solved by the provision of a pair ofhousing bodies which are completely divided from each other in theaspect of the acoustic room.

The earphone body part 20 has an earphone 21, which will be insertedinto an ear of a user. The earphone 21 protrudes from the earphone bodypart 20 in an integrated fashion. At the bottom of the earphone bodypart 20 is formed an annular fitting groove 22, in which a carrying cap50 is fitted.

As shown in the drawing, the carrying cap 50 is provided at the innercircumference thereof with an annular fitting protrusion 51, which isfitted in the annular fitting groove 22. Also, the carrying cap 50 isintegrally formed with an insertion hole 52, through which a string S,such as mobile phone string or a necklace, is inserted. Alternatively, acoupling member (not shown), such as a tiepin, may be formed at thecarrying cap 50 such that the carrying cap can be clipped to a pocket ofa user for the purpose of carrying.

In order to construct the earphone body part 20 and the main body part30 in a structure in which the earphone body part 20 and the main bodypart 30 can be hingedly rotated relative to each other, as shown in thedrawing, the main body part 30 is provided with a hinge shaft part 35,which is a protruding shaft part that can be hingedly rotated about thehinge shaft 10, and the earphone body part 20 is provided with a hingebridge part 25, formed approximately in the shape of ‘[’ to receive thehinge shaft part 35. The hinge bridge part 25 has a pair of hinge bridgepieces 25′ and 25″.

The earphone body part 20 and the main body part 30 are hingedly rotatedrelative to each other by a rotation angle a of approximately 70 to 110degrees depending upon the convenience of a user. Consequently, when theearphone 21 of the earphone body part 20 is inserted into an ear of theuser, the microphone M of the main body part 30 is located adjacent tothe mouth of the user.

In order to prevent the headset assembly from returning to its originalposition after the hinged rotation between the earphone body part 20 andthe main body part 30, the earphone body part 20 and the main body part30 are preferably fixed to each other by a frictional force between thebridge piece 25′ of the hinge bridge part 25 and a bottom part 35′ ofthe hinge shaft part 35 and the mechanical interference between thebridge piece 25′ and the bottom part 35′ due to their sizes.

While the earphone body part 20 and the main body part 30 are hingedlyrotated relative to each other, structures to apply power to the headsetassembly H for Bluetooth equipment, such that the manipulation of thebutton is initiated, may be provided in various manners.

A structure having the highest operational reliability and a smallpossibility of breakdown is a hole switch. In this structure, asensitive magnet Mg is inserted in the end of the bridge piece 25′ ofthe earphone body part 20, and a magnetic force sensitive integratedcircuit (IC) C is mounted in the hinge shaft part 35 of the main bodypart 30 such that the magnetic force sensitive IC C is spaced apart fromthe sensitive magnet Mg in the state of FIG. 2 and FIG. 4C, in which theheadset assembly is erected. Consequently, when the magnetic forcesensitive IC C is spaced apart from the sensitive magnet Mg as shown inFIG. 2 and FIG. 4C, the microcomputer mounted in the circuit board 40recognizes that the headset assembly is erected, and therefore, preventsthe occurrence of a subsequent operation event although the manipulationbutton 31 and the volume switch 32 are pressed.

When the user hingedly rotates earphone body part 20 relative to themain body part 30, such that the headset assembly is bent, as shown inFIG. 4D, the sensitive magnet Mg approaches the magnetic force sensitiveIC C, and therefore, a magnetic force is applied. As a result, themicrocomputer recognizes the application of the magnetic force, andtherefore, activates the manipulation button 31 and the volume switch 32such that an event normally occurs by the user's pressing of themanipulation button 31 and the volume switch 32.

According to circumstances, the sensitive magnet Mg may be mounted inthe carrying cap 50, and the corresponding magnetic force sensitive IC Cmay be mounted in the earphone body part 20.

The above-described structure of the sensitive magnet Mg and themagnetic force sensitive IC C may be applied to all kinds of Bluetoothheadset assembly with the carrying cap 50.

Specifically, in addition of the structure in which the earphone bodypart 20 and the main body part 30 are hingedly rotated relative to eachother about the hinge shaft part 35 as previously illustrated, thecarrying cap may be fitted to an earphone part of a straight bar typeheadset or a headset permanently bent in the shape of ‘

’ and the magnetic force sensitive IC and the sensitive magnet may bemounted between the carrying cap and the earphone part of the headset.In this case, the headset has the same effect as the previouslydescribed headset assembly.

Alternatively, it is possible to consider a mechanical switch, such as amicro switch, in which an operation knob protrudes toward the hingeshaft part 35 such that the operation knob can be pressed by therotation of the bridge piece 25′ about the hinge shaft 10, a mechanicalswitch, such as a micro switch, which is operated according to theattachment and detachment of the carrying cap 50, or a mechanical switchwhich is turned on and off by the rotation of the hinge shaft 10.

The carrying cap 50 allows the use of a string S for carrying and, inaddition, prevents the introduction of external foreign matter into theearphone 21.

A headset assembly H2 shown in FIGS. 5 and 6 has the same concept as thepreviously described embodiment of the present invention; however, theheadset assembly H2 of FIGS. 5 and 6 is characterized in that the lengthof the main body part 30 is greatly increased, and the size of theearphone body part 20 is extremely reduced such that the earphone bodypart 20 itself is received in the main body part 30 or the earphone isreceived in the main body part 30 by the hinged rotation of the earphonebody part 20.

The same reference numerals refer to the same members or structures.

Hereinafter, the power saving function of the headset assembly forBluetooth equipment with the above-stated construction according to thepresent invention will be described.

[Microcomputer's Recognition of Event by the Switching Due to theBending]

When a user does not use the Bluetooth headset assembly H with theabove-stated construction, the mechanical operation to hingedly rotatethe earphone body part 20 relative to the main body part 30 of theheadset assembly H is not performed, and therefore, the positionalrelationship between the earphone body part 20 and the main body part 30is not changed. Consequently, the microcomputer chip, provided byordinary manufacturing companies and mounted in the circuit board 40,recognizes the above-mentioned state, and therefore, prevents theoccurrence of a subsequent operation event although the manipulationbutton 31 and the volume switch 32 are pressed.

When the user hingedly rotates the earphone body part 20 relative to themain body part 30 to use the headset assembly H, on the other hand, aswitching signal generated by the mechanical operation and the change ofthe positional relationship between the earphone body part 20 and themain body part 30 is recognized by the microcomputer chip, andtherefore, the microcomputer chip activates the manipulation button 31and the volume switch 32 such that an event normally occurs by theuser's pressing of the manipulation button 31 and the volume switch 32.

Consequently, it is possible for the user to easily recognize that theheadset assembly H is in the standby state merely through his/her visualrecognition of that the headset assembly H is bent in the shape of ‘

’

In addition to the structure disclosed as the switching means actuatedby the bending and erecting operations as illustrated above, it ispossible to determine whether the pressing operation of the manipulationswitches is to be activated, such that the event can normally occur, orto be inactivated, such that the event cannot occur, by a switch meansconstructed to be operated by the opening and closing the carrying cap50 or a switching means constructed to be turned on and off by theuser's insertion and separation of an additional insertion pin, fixed toa string S, such as a mobile phone string or a necklace, into and from afixing hole (not shown) formed at the headset assembly H. Suchstructures may be devises in various manners, and therefore, a detaileddescription thereof will not be given.

[Power Saving by Switching of Microcomputer Chip to Power Saving Mode]

As shown in FIG. 8, which illustrates a conventional Bluetooth headset,most Bluetooth headsets OH search a Bluetooth device (MASTER) of amobile phone H at a predetermined period (500 ms to 800 ms) or transmittheir own information to the mobile phone at regular intervals tocontinuously maintain the connection with the mobile phone such that theBluetooth headsets immediately respond to the mobile phone H, in astandby mode, in which the telephone conversation is not performed, aswell as in a telephone conversation mode.

As a result, a regular amount of power is consumed even in the standbymode. In the present invention, this state is referred to as a low-poweridle state I.′ The Bluetooth headset OH may control an indication lamp,such as an LED, to blink in order to indicate that the Bluetooth headsetOH is under the operation.

In addition to the low-power idle state I, as shown in FIG. 7, thepresent invention further includes a super low power state S in whichthe opening and closing operations are performed according to theabove-stated various switching operation. In the super low power stateS, the Bluetooth headset assembly H performs a sleep mode in which onlyan event, such as key input, is allowed but other functions areinactivated. As a result, the Bluetooth headset assembly H according tothe present invention has standby time 10 times greater than that of theconventional Bluetooth headset.

The additional setting of the super low power state S is possible by theaddition of simple logic in designing of the chip.

According to the present invention, the super low power state S is setaccording to a signal of the switching means, which can be constructedin various structures, constituting the Bluetooth headset assembly H, ina nonuse state, for example, at a state in which the earphone body part20 and the main body part 30 of the headset assembly H are arranged in astraight line.

When a user hingedly rotates the earphone body part 20 of the headsetassembly H relative to the main body part 30 to use the headset assemblyH, the headset assembly H goes into the low-power idle state I. As aresult, the headset assembly H is placed in the standby state, in whichthe headset assembly H is connected to a mobile phone, i.e., in whichsearch and information exchange is periodically performed between themobile phone and the headset assembly H. Consequently, the headsetassembly H is maintained in the same state as the standby state of theconventional Bluetooth equipment. When a key action KA is performed bythe user, i.e., the manipulation button 31, which is a multifunctionswitch, is manipulated by the user, the headset assembly H immediatelygoes into an activation state A in which the headset assembly H ismaintained connected with the mobile phone to normally perform theBluetooth function.

When a telephone call is received by the mobile phone in the super lowpower state S of the headset assembly H, the user may hingedly rotatethe earphone body part 20 relative to the main body part 30, without themanipulation of the manipulation button 31, which is a multifunctionswitch, to connect the headset assembly H to the mobile phone such thatthe telephone communication is immediately performed. Consequently, theconvenience of use is improved.

Even when the user hingedly rotates the earphone body part 20 relativeto the main body part 30, such that the earphone body part 20 and themain body part 30 of the headset assembly H are arranged in a straightline, not to use the headset assembly H, and therefore, the signal fromthe switching means is interrupted, the headset assembly H does notdirectly go into the low-power idle state I, but the headset assembly His disconnected from the mobile phone in a predetermined period of timeand then the headset assembly H goes into the standby state.

This is to prevent the malfunction of the headset assembly H due to thefrequent connection and interruption of the headset assembly H by therepetitive bending and restoring of the headset assembly H according tothe present invention, irrespective of the intension of the user.

INDUSTRIAL APPLICABILITY

As apparent from the above description, the present invention provides aheadset that can be suitably applied to and used with mobilecommunication equipment, such as mobile phones. Furthermore, the presentinvention provides a headset assembly having a power saving function.

1. A headset assembly (H) for Bluetooth communication with mobilecommunication equipment, comprising: an earphone body part (20) and amain body part (30) provided individually and connected to each othersuch that the earphone body part (20) and the main body part (30) can behingedly rotated relative to each other about a hinge shaft (10); acarrying cap (50) selectively coupled to the earphone body part (20) orthe main body part (30), the carrying cap (50) constituting a housingbody together with the earphone body part (20) and the main body part(30); and a means mounted to the housing body for generating a switchingsignal to electrically open and close the headset assembly.
 2. A headsetassembly (H) for Bluetooth communication with mobile communicationequipment, comprising: a straight bar type headset or a headsetpermanently bent in the shape of ‘-|;’ a carrying cap fitted to anearphone part of the headset; and a switching means mounted between thecarrying cap and the earphone part of the headset, the switching meansincluding a magnetic force sensitive integrated circuit (IC) and asensitive magnet.
 3. The headset assembly according to claim 1, whereinthe means for generating the switching signal of the headset assembly(H) is selected among: a hole switch which can be operated by theconnection and disconnection between a sensitive magnet (Mg) and amagnetic force sensitive IC (C) selectively provided at the earphonebody part (20) and the main body part (30) or the carrying cap (50)through the hingedly rotation of the earphone body part (20) and themain body part (30) relative to each other about the hinge shaft (10),such that the earphone body part (20) and the main body part (30) forman angle therebetween or the earphone body part (20) and the main bodypart (30) are arranged in a straight line, or through the attachment ordetachment of the carrying cap (50); a mechanical switch, such as amicro switch, which can be pressed according to the hingedly rotation ofthe earphone body part (20) or the main body part (30) about the hingeshaft (10) or the attachment and detachment of the carrying cap (50);and a switch which can be turned on and off by the rotation of the hingeshaft (10).
 4. The headset assembly according to claim 2, wherein apower saving function is carried out according to validity-invalidity ofthe occurrence of an event of the manipulation switch in a microcomputerchip of the headset assembly (H) depending upon whether the operationsignal of the switching means exists or not.
 5. The headset assemblyaccording to claim 2, wherein a power saving function is carried outaccording to the switching between a low-power idle state (I) and asuper low power state (S) of the headset assembly (H) depending uponwhether the operation signal of the switching means exists or not. 6.The headset assembly according to claim 1, wherein the main body part(30) is provided at a region thereof which is exposed when the earphonebody part (20) and the main body part (30) are hingedly rotated relativeto each other with a power connector (60), whereby the power connector(60) is hidden while the earphone body part (20) and the main body part(30) are arranged in a straight line.
 7. The headset assembly accordingto claim 1, further comprising: a carrying means for carrying theheadset assembly (H), the carrying means being a tiepin fixed to theearphone body part (20), the main body part (30), or the carrying cap(50).
 8. The headset assembly according to claim 3, wherein a powersaving function is carried out according to validity-invalidity of theoccurrence of an event of the manipulation switch in a microcomputerchip of the headset assembly (H) depending upon whether the operationsignal of the switching means exists or not.
 9. The headset assemblyaccording to claim 3, wherein a power saving function is carried outaccording to the switching between a low-power idle state (I) and asuper low power state (S) of the headset assembly (H) depending uponwhether the operation signal of the switching means exists or not.